2QHX	Oxidoreductase	date	Jul 03, 2007
title	Structure Of Pteridine Reductase From Leishmania Major Compl A Ligand
authors	F.Gibellini, K.Mcluskey, L.Tulloch, W.N.Hunter
compound		source
Molecule: Pteridine Reductase 1 Chain: A, B, C, D Synonym: H Region Methotrexate Resistance Protein Ec: 1.5.1.33 Engineered: Yes		Organism_scientific: Leishmania Major Organism_taxid: 5664 Gene: Ptr1, Hmtxr Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet 15b
symmetry	Space Group: P 21 21 21	R_factor 0.183 R_Free 0.228
crystal cell	length a length b length c angle alpha angle beta angle gamma 95.499 104.231 136.865 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.61 Å
ligand	FE1, IOD, NAP	enzyme	Oxidoreductase E.C.1.5.1.33 BRENDA
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Discovery of potent pteridine reductase inhibitors to guide antiparasite drug development., Cavazzuti A, Paglietti G, Hunter WN, Gamarro F, Piras S, Loriga M, Allecca S, Corona P, McLuskey K, Tulloch L, Gibellini F, Ferrari S, Costi MP, Proc Natl Acad Sci U S A. 2008 Feb 5;105(5):1448-53. Epub 2008 Feb 1. PMID:18245389

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (191 Kb) [Save to disk] Biological Unit Coordinates (2qhx.pdb1.gz) 177 Kb LPC: Ligand-Protein Contacts for 2QHX CSU: Contacts of Structural Units for 2QHX Likely Quarternary Molecular Structure file(s) for 2QHX Structure Factors (333 Kb) Retrieve 2QHX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QHX from S2C, [Save to disk] Re-refined 2qhx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QHX in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 2QHX

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2QHX, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qhx_C] [2qhx_B] [2qhx_A] [2qhx_D] [2qhx] SWISS-PROT database: [Q01782] Domain organization of [PTR1_LEIMA] by SWISSPFAM

Other resources with information on 2QHX

Community annotation for 2QHX at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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